Is it necessary to plan all flights of the Round the World Fare in advance?
Reservations must be made at least 24 hours prior to your departure for sectors up to and including the first international sector. Further segments of your journey may be booked at any time. There is an exception for journeys originating in Europe: Reservations must be made at least 24 hours prior to departure for sectors up to and including the first intercontinental sector. Subsequent segments of your journey may be booked at any time. Further exceptions may apply.